So we have flv file, we play it with mx:vidodisplay for example. how to get on which stream frame we are currently on?
you can check the nearest keyframe to the current time in stream metadata
upd
when creating a stream you need to handle its' onMetaData call:
private var metaInfo: Object;
private function initStream():void{
stream = new NetStream(conn);
stream.bufferTime = 5;
stream.addEventListener(NetStatusEvent.NET_STATUS, onStatus);
stream.client = new Object();
stream.client.onMetaData = onMetaData;/*this is what you need*/
video.attachNetStream(stream);
}
private function onMetaData(info:Object):void {
metaInfo = info;
var tmpstr:String = '';
for(var s:String in info){
var tstr:String = s + ' = ' + info[s] + '\n';
tmpstr += tstr.indexOf('object') == -1 ? tstr : '';
for(var a:String in info[s]){
var ttstr:String = s + ':' + a + ' = ' + info[s][a] + '\n';
tmpstr += ttstr.indexOf('object') == -1 ? ttstr : '';
for(var c:String in info[s][a]){
var tttstr:String = s + ':' + a + ':' + c + ' = ' + info[s][a][c] + '\n';
tmpstr += tttstr.indexOf('object') == -1 ? tttstr : '';
}
}
}
trace(tmpstr);
}
in this trace you'll see if the streams' metadata has items like:
seekpoints:93:offset = 10342550
seekpoints:93:time = 165.799
or maybe:
keyframes:times = 0,0.48,0.96,1.44,1.92,2.4,2.88,3.36,3.84,4.32,4.8,5.28,5.76,6.24
keyframes:filepositions = 1063,95174,136998,176043,209542,239148,271062,302006,331724,363948,395039,427503,456317,483313
it depends on encoder settings, if your metadata has any object of this kind (metadata['keyframes'], metadata['seekpoints'] etc) you can do the following:
for (var i:int = 0; i < metaInfo['keyframes']['times'].length; i++) {
if (stream.time < metaInfo['keyframes']['times'][i]) {
var keyFrameNum: int = (metaInfo['keyframes']['times'][i] - stream.time < stream.time - metaInfo['keyframes']['times'][i - 1]) ? i : i - 1;
}
}
I did a static class to parse netstream metadata object to as3 object. You can use JSON.stringify(parse(info)) to check all attribute in info. This class just draftly implement. May be some bugs inside.
public class NetStreamMetaData
{
public static function parse(object:Object, isArray:Boolean = false):Object{
var ret:Object = {};
if(isArray)
ret = [];
var k:String;
for(k in object){
if(isNaN(Number(k))){
if(object[k] is Array){
ret[k] = parse(object[k], true);
}else{
ret[k] = object[k];
}
}else{
if(object[k] is Array){
ret.push(parse(object[k], false));
}else{
ret.push(object[k]);
}
}
}
return ret;
}
}
Related
I wrote this script, which works perfectly, except it is taking about 5 minutes (give a few) to run. What would be the best way to speed this up?
Kind regards, Rob
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
int divnumber = 17476;
HtmlAgilityPack.HtmlWeb web = new HtmlAgilityPack.HtmlWeb();
while (divnumber < 18500)
{
string DivUrl = "https://www.hattrick.org/nl/World/Series/?LeagueLevelUnitID=" + divnumber;
HtmlAgilityPack.HtmlDocument doc = web.Load(DivUrl);
var ClassShy = doc.DocumentNode.SelectNodes("//a[#class='shy']");
if (ClassShy != null)
{
ClassShy.ToList();
int i = 0;
foreach (var item in ClassShy)
{
i++;
}
int divForList = divnumber - 17475;
if (i > 4)
{
Console.WriteLine("VI." + divForList + " - " + i);
}
}
divnumber++;
}
sw.Stop();
TimeSpan ts = sw.Elapsed;
string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}:{3:00}", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10);
Console.WriteLine("\nDone in " + elapsedTime);
sw.Reset();
Is there any alternative to System.Web.Security.Membership.GeneratePassword in AspNetCore (netcoreapp1.0).
The easiest way would be to just use a Guid.NewGuid().ToString("n") which is long enough to be worthy of a password but it's not fully random.
Here's a class/method, based on the source of Membership.GeneratePassword of that works on .NET Core:
public static class Password
{
private static readonly char[] Punctuations = "!##$%^&*()_-+=[{]};:>|./?".ToCharArray();
public static string Generate(int length, int numberOfNonAlphanumericCharacters)
{
if (length < 1 || length > 128)
{
throw new ArgumentException(nameof(length));
}
if (numberOfNonAlphanumericCharacters > length || numberOfNonAlphanumericCharacters < 0)
{
throw new ArgumentException(nameof(numberOfNonAlphanumericCharacters));
}
using (var rng = RandomNumberGenerator.Create())
{
var byteBuffer = new byte[length];
rng.GetBytes(byteBuffer);
var count = 0;
var characterBuffer = new char[length];
for (var iter = 0; iter < length; iter++)
{
var i = byteBuffer[iter] % 87;
if (i < 10)
{
characterBuffer[iter] = (char)('0' + i);
}
else if (i < 36)
{
characterBuffer[iter] = (char)('A' + i - 10);
}
else if (i < 62)
{
characterBuffer[iter] = (char)('a' + i - 36);
}
else
{
characterBuffer[iter] = Punctuations[i - 62];
count++;
}
}
if (count >= numberOfNonAlphanumericCharacters)
{
return new string(characterBuffer);
}
int j;
var rand = new Random();
for (j = 0; j < numberOfNonAlphanumericCharacters - count; j++)
{
int k;
do
{
k = rand.Next(0, length);
}
while (!char.IsLetterOrDigit(characterBuffer[k]));
characterBuffer[k] = Punctuations[rand.Next(0, Punctuations.Length)];
}
return new string(characterBuffer);
}
}
}
I've omitted the do...while loop over the CrossSiteScriptingValidation.IsDangerousString. You can add that back in yourself if you need it.
You use it like this:
var password = Password.Generate(32, 12);
Also, make sure you reference System.Security.Cryptography.Algorithms.
System.Random doesn't provide enough entropy when used for security reasons.
https://cwe.mitre.org/data/definitions/331.html
Why use the C# class System.Random at all instead of System.Security.Cryptography.RandomNumberGenerator?
Please see the example below for a more secure version of #khellang version
public static class Password
{
private static readonly char[] Punctuations = "!##$%^&*()_-+[{]}:>|/?".ToCharArray();
public static string Generate(int length, int numberOfNonAlphanumericCharacters)
{
if (length < 1 || length > 128)
{
throw new ArgumentException("length");
}
if (numberOfNonAlphanumericCharacters > length || numberOfNonAlphanumericCharacters < 0)
{
throw new ArgumentException("numberOfNonAlphanumericCharacters");
}
using (var rng = RandomNumberGenerator.Create())
{
var byteBuffer = new byte[length];
rng.GetBytes(byteBuffer);
var count = 0;
var characterBuffer = new char[length];
for (var iter = 0; iter < length; iter++)
{
var i = byteBuffer[iter] % 87;
if (i < 10)
{
characterBuffer[iter] = (char)('0' + i);
}
else if (i < 36)
{
characterBuffer[iter] = (char)('A' + i - 10);
}
else if (i < 62)
{
characterBuffer[iter] = (char)('a' + i - 36);
}
else
{
characterBuffer[iter] = Punctuations[GetRandomInt(rng, Punctuations.Length)];
count++;
}
}
if (count >= numberOfNonAlphanumericCharacters)
{
return new string(characterBuffer);
}
int j;
for (j = 0; j < numberOfNonAlphanumericCharacters - count; j++)
{
int k;
do
{
k = GetRandomInt(rng, length);
}
while (!char.IsLetterOrDigit(characterBuffer[k]));
characterBuffer[k] = Punctuations[GetRandomInt(rng, Punctuations.Length)];
}
return new string(characterBuffer);
}
}
private static int GetRandomInt(RandomNumberGenerator randomGenerator)
{
var buffer = new byte[4];
randomGenerator.GetBytes(buffer);
return BitConverter.ToInt32(buffer);
}
private static int GetRandomInt(RandomNumberGenerator randomGenerator, int maxInput)
{
return Math.Abs(GetRandomInt(randomGenerator) % maxInput);
}
}
I want to extract more than one Metric from Reporting API V4 Java classes. I pass from "main" function the "ga:" names of dimensions and metrics to the function below:
private static ReportRequest createComplexRequest(java.lang.String startDate,java.lang.String endDate,ArrayList<java.lang.String> metrics,ArrayList<java.lang.String> dimensions, String pageToken){
DateRange dateRange = new DateRange();
dateRange.setStartDate(startDate);
dateRange.setEndDate(endDate);
//Create the Metric object ArrayList
int metricsSize=metrics.size();
Metric[] metricsArray = new Metric[metricsSize];
for(int i=0;i<metricsSize;i++){
Metric metric = new Metric()
.setExpression("ga:"+metrics.get(i))
.setAlias(metrics.get(i));
metricsArray[i]=metric;
}
int dimensionsSize=dimensions.size();
Dimension[] dimensionsArray = new Dimension[dimensionsSize];
for(int i=0;i<dimensionsSize;i++){
Dimension dimension = new Dimension()
.setName("ga:"+dimensions.get(i));
dimensionsArray[i]=dimension;
}
ReportRequest request = new ReportRequest()
.setViewId(VIEW_ID)
.setDateRanges(Arrays.asList(dateRange))
.setDimensions(Arrays.asList(dimensionsArray))
.setMetrics(Arrays.asList(metricsArray))
.setPageToken(pageToken)
.setPageSize(10000);
return request;
}
As an example, I'm trying to extract "sessions" and "bounces" metrics. While I was trying to troubleshoot this case I realized that the metricHeaders.size() is 2 (as many as my metrics) but row.getMetrics() returns only one ("session" metric). Below is what I mean. I intentionally created the following problematic print function which reveals the problem:
private static void printResponse(GetReportsResponse response) {
for (Report report: response.getReports()) {
ColumnHeader header = report.getColumnHeader();
List<String> dimensionHeaders = header.getDimensions();
List<MetricHeaderEntry> metricHeaders = header.getMetricHeader().getMetricHeaderEntries();
List<ReportRow> rows = report.getData().getRows();
if (rows == null) {
System.out.println("No data found for " + VIEW_ID);
return;
}
for (ReportRow row: rows) {
List<String> dimensions = row.getDimensions();
List<DateRangeValues> metrics = row.getMetrics();
System.out.println("Metrics size:"+metrics.size());
for (int i = 0; i < dimensionHeaders.size() && i < dimensions.size(); i++) {
System.out.println(dimensionHeaders.get(i) + ": " + dimensions.get(i));
}
for(int l = 0;l<metricHeaders.size();l++)
{
System.out.println(metricHeaders.get(l).getName());
DateRangeValues values = metrics.get(l);
}
}
}
}
The above function crushes because metricHeaders.size() is 2 but metrics is List with only one metric, the "sessions" metric!! That's why I get:
java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
Do you have any idea why this happens??? Please help!!
The sample printResponse() method in GA developers guide has some errors.
Try the following code instead:
private static void printResponseCustom(GetReportsResponse response) {
for (Report report: response.getReports()) {
ColumnHeader header = report.getColumnHeader();
List<String> dimensionHeaders = header.getDimensions();
List<MetricHeaderEntry> metricHeaders = header.getMetricHeader().getMetricHeaderEntries();
List<ReportRow> rows = report.getData().getRows();
if (rows == null) {
System.out.println("No data found for " + VIEW_ID);
return;
}
for (ReportRow row: rows) {
List<String> dimensions = row.getDimensions();
List<DateRangeValues> metrics = row.getMetrics();
System.out.println("Metrics size:"+metrics.size());
System.out.println("Metrics headers:"+metricHeaders.size());
for (int i = 0; i < dimensionHeaders.size() && i < dimensions.size(); i++) {
System.out.println(dimensionHeaders.get(i) + ": " + dimensions.get(i));
}
int k = 0;
for (int j = 0; j < metricHeaders.size() && j < metrics.size();
DateRangeValues values = metrics.get(j);
for (String value : values.getValues()) {
MetricHeaderEntry entry = metricHeaders.get(k);
System.out.println(entry.getName() + ": " + value);
k++;
}
}
}
}
}
How can I add a countdown in this script, by pressing the left mouse button? Every click counts minus 1. 10,9,8,7,6,5,4,3,2,1,0 example? This currently does not work in this script, and I do not understand the problem.
#pragma strict
var myTrigger : GameObject;
var myObject : GameObject;
var countAmmo : int = 10 ;
private var score : int = 10;
var guiScore : GUIText;
function Start ()
{
guiScore.text = "Score: 10";
}
function Update()
{
if(Input.GetButtonDown("Fire1"))
countAmmo = countAmmo -1;
score = countAmmo -1;
if(countAmmo == 0)
if(score == -1)
{
myObject.SetActive(false);
}
else
{
guiScore.text = "Score: -1";
myObject.SetActive(true);
}
}
I don't know exactly which language this is or in which context you are trying to achieve that, but looking at your code it seems that its only a problem with some brackets in your if-clauses. Try it, no guarantee that it's working.
#pragma strict
var myTrigger : GameObject;
var myObject : GameObject;
var countAmmo : int = 10 ;
private var score : int = 10;
var guiScore : GUIText;
function Start ()
{
guiScore.text = "Score: 10";
}
function Update()
{
if(Input.GetButtonDown("Fire1"))
{
countAmmo = countAmmo -1;
score = countAmmo -1;
guiScore.text = "Score: " + score.ToString();
if(countAmmo <= 0)
{
if(score == -1)
{
myObject.SetActive(false);
} else {
guiScore.text = "Score: -1";
}
myObject.SetActive(true);
}
}
}
This line:
guiScore.text = "Score: -1";
Should be:
guiScore.text = "Score:" + score;
#pragma strict
var myTrigger : GameObject;
var myObject : GameObject;
var countAmmo : int = 10 ;
private var score : int = 10;
var guiScore : GUIText;
function Start ()
{
guiScore.text = "Score: " + score.toString();
}
function Update()
{
if(Input.GetButtonDown("Fire1"))
countAmmo--;
score = countAmmo - 1;
if(countAmmo == 0)
{
if(score == -1)
{
myObject.SetActive(false);
}
else
{
guiScore.text = "Score: " + score.ToString();
myObject.SetActive(true);
}
}
}
I am working on the platform confirmit, which creates online surveys. This is a script node that results in the runtime error "object required", I would be grateful if you could help me fix it.. It is supposed to check whether certain codes hold 1 or 2 in the questions q2b and q3a (questions are referenced with the function f() - f(question id)[code]) - the
'//skip ?' part. Then it recodes a maximum of four of the codes into another question (h_q4) for further use.
var flag1 : boolean = false;
var flag2 : boolean = false;
//null
for(var i: int=0; i <9; i++)
{
var code = i+1;
f("h_q4")[code].set(null);
}
f("h_q4")['95'].set(null);
//skip ?
for(var k: int=1; k <16; k+=2)
{
var code = k;
if(f("q2b")[code].none("1", "2"))
flag1;
else
{
flag1 = 0;
break;
}
}
if(f("q3a")['1'].none("1", "2"))
flag2;
if(flag1 && flag2)
f("h_q4")['95'].set("1");
//recode
else
{
var fromForm = f("q2b");
var toForm = f("h_q4");
const numberOfItems : int = 4;
var available = new Set();
if(!flag1)
{
for( i = 1; i < 16; i+=2)
{
var code = i;
if(f("q2b")[i].any("1", "2"))
available.add(i);
}
}
if(!flag2)
{
available.add("9");
}
var selected = new Set();
if(available.size() <= numberOfItems)
{
selected = available;
}
else
{
while(selected.size() < numberOfItems)
{
var codes = available.members();
var randomNumber : float = Math.random()*codes.length;
var randomIndex : int = Math.floor(randomNumber);
var selectedCode = codes[randomIndex];
available.remove(selectedCode);
selected.add(selectedCode);
}
}
var codes = fromForm.domainValues();
for(var i = 0;i<codes.length;i++)
{
var code = codes[i];
if(selected.inc(code))
{
toForm[code].set("1");
}
else
{
toForm[code].set("0");
}
}
}
the first part of the code (//null) empties the 'recepient' question to ease testing
.set(), .get(), .any(), .none() are all valid